(WBIR - Clinton) It's been a little more than one month since an Oak Ridge native disappeared in California. Investigators are still looking for Erin Corwin, 20, but her family and friends spent Saturday remembering her at an East Tennessee zoo.

Little Ponderosa Zoo gave a portion of its admission to Corwin's family to be used for reward and expenses related to the ongoing investigation into her disappearance. In addition, zoo visitors were able to buy t-shirts, hats, food, and other items to support the Corwin Family.

Corwin, the wife of a marine, was pregnant when she vanished in Twentynine Palms, California. She was last seen on June 28, when she told her husband, Jonathan, that she was headed to Joshua Tree National Park.

He reported her missing the following day, and police found her empty car one day after that.

Corwin's friends describe the military wife as "loyal". They also said Corwin loves animals, which is why they wanted to have the fundraiser at the zoo.

Tori Wagner of Oliver Springs said, "Anytime she was around a horse or any kind of an animal you could see her personality burst."

Amber Hutson of Oak Ridge said, "I always remember going to her stable with her stable with her and watching her take care of the horses."

Little Ponderosa Zoo Director James Cox said he didn't hesitate to help the Corwin Family. He said, "When they told us they are Anderson County folks and told us the story we were will to jump right in and help."